Company lists · Data refreshed October 2026

Top 25 Industrial control system security worldwide

Name: Industrial control system security worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 3,051 companies tracked

RevenueBase identified 3,051 company matches for industrial control system security worldwide as of October 2026 and tracks 69,176 professional contacts across them, including 28,141 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for industrial control system security worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 1, 2026. Country and city lists for industrial control system security follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 1, 2026 How this list was built

3,051Companies

69,176Contacts tracked

28,141Verified emails

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The 25 largest industrial control system security worldwide

Ranked by team size

Top 25 of 3,051 company matches for industrial control system security worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Palo Alto Networks	Exact match	Santa Clara, CA, United StatesHQ recorded Oct 1, 2026	10001+	18,431 contacts →
	Exact match “Palo Alto Networks, the global cybersecurity leader, is shaping the cloud-centric future with technology that is transforming the way people and organizations operate.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	Trellix	Exact match	Plano, TX, United StatesHQ recorded Oct 1, 2026	1,001-5,000	3,447 contacts →
	Exact match “Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	Guidepoint Security	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	1,232 contacts →
	Exact match “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	PAS	Exact match	Houston, TX, United StatesHQ recorded Oct 1, 2026	201-500	1,231 contacts →
	Exact match “PAS, part of Hexagon's Asset Lifecycle Intelligence division, delivers software solutions that prevent, detect, & remediate cyber threats, reduce process safety risks, and…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	Forescout Technologies INC	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	1,181 contacts →
	Exact match “As AI-driven vulnerability and exploitation accelerate attack velocity to machine speed, Forescout is a foundational cyber defense layer that allows organizations to segment and…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Trustwave, A Levelblue Company	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	501-1,000	874 contacts →
	Exact match “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	SISA	Exact match	Bangalore, IndiaHQ recorded Oct 1, 2026	201-500	743 contacts →
	Exact match “SISA is a global forensics-driven cybersecurity solutions company, trusted by leading organizations for securing their businesses with robust preventive, detective, and corrective…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	Claroty	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	501-1,000	725 contacts →
	Exact match “Claroty has redefined cyber-physical systems (CPS) protection with an unrivaled industry-centric platform built to secure mission-critical infrastructure.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	S2grupo	Exact match	Valencia, SpainHQ recorded Oct 1, 2026	501-1,000	683 contacts →
	Exact match “We are a European company specialising in cybersecurity, cyberintelligence and cyberdefence, with more than 20 years of experience protecting critical infrastructures and…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Dragos, INC	Exact match	Hanover, MD, United StatesHQ recorded Oct 1, 2026	501-1,000	551 contacts →
	Exact match “Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	Paramount Computer Systems	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 1, 2026	201-500	525 contacts →
	Exact match “Protection is Paramount!” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	Securityhq	Exact match	London, United KingdomHQ recorded Oct 1, 2026	501-1,000	502 contacts →
	Exact match “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Sirar By STC	Exact match	Riyadh, Saudi ArabiaHQ recorded Oct 1, 2026	201-500	493 contacts →
	Exact match “World-class leading edge cyber capabilities to enable and protect economic and physical critical infrastructure and government services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Safeway	Exact match	Sao Paulo, BrazilHQ recorded Oct 1, 2026	201-500	399 contacts →
	Exact match “A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	PT Itsec Asia TBK	Exact match	Jakarta, IndonesiaHQ recorded Oct 1, 2026	201-500	388 contacts →
	Exact match “ITSEC Asia is a leading cybersecurity company in Indonesia, listed on the Indonesian Stock Exchange (“CYBR”), with over 400 employees across five countries.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	G Data Cyberdefense	Exact match	Bochum, GermanyHQ recorded Oct 1, 2026	501-1,000	386 contacts →
	Exact match “Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	Nozomi Networks	Exact match	San Francisco, CA, United StatesHQ recorded Oct 1, 2026	201-500	375 contacts →
	Exact match “We protect the world’s critical infrastructure from cyber threats.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	SK Shieldus	Exact match	경기도, South KoreaHQ recorded Oct 1, 2026	5,001-10,000	348 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	Truesec	Exact match	SwedenHQ recorded Oct 1, 2026	201-500	332 contacts →
	Exact match “Prevent Breach & Minimize Impact” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	Infopercept	Exact match	Ahmedabad, IndiaHQ recorded Oct 1, 2026	201-500	304 contacts →
	Exact match “Infopercept is a global cybersecurity company dedicated to transforming how organizations perceive and implement security.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Bridewell	Exact match	Reading, United KingdomHQ recorded Oct 1, 2026	201-500	303 contacts →
	Exact match “Bridewell is the trusted cyber security partner for organisations operating within Critical National Infrastructure (CNI), as well as companies who want the highest standard of…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	Niksun	Exact match	Princeton, NJ, United StatesHQ recorded Oct 1, 2026	201-500	276 contacts →
	Exact match “In the ever-growing world of Cloud Computing, Big Data and the Internet of Things, NIKSUN® is the industry leader in making the unknown known.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	Sits Group	Exact match	Wettingen, SwitzerlandHQ recorded Oct 1, 2026	501-1,000	269 contacts →
	Exact match “As a leading IT security enterprise, the SITS Group stands for end-to-end security.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24	Sygnia	Exact match	Tel Aviv, IsraelHQ recorded Oct 1, 2026	201-500	249 contacts →
	Exact match “Sygnia is a cyber technology and services company, providing high-end consulting and incident response support for organizations worldwide.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	Cyberani By Aramco Digital	Exact match	Riyadh, Saudi ArabiaHQ recorded Oct 1, 2026	201-500	241 contacts →
	Exact match “Cyberani is an Aramco Digital company that is dedicated to safeguarding the digital frontiers of industry leaders and government agencies.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “industrial control system security”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 3,051 industrial control system security worldwide

See the full list, filter by size, metro and specialty, and access 28,141 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial control system security worldwide at a glance

As of Oct 1, 2026

40.7%Verified-email coverage

22.7Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · London

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

1,380

11-50

1,193

51-200

335

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for industrial control system security are linked below.
What qualifies: Company records worldwide whose business descriptions match “industrial control system security” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 28,141 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on October 1, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Industrial control system security by location

31 lists · largest first

Every Industrial control system security list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “industrial control system security”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial control system security are there worldwide?

RevenueBase identified 3,051 company matches for industrial control system security worldwide as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Palo Alto Networks tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most industrial control system security?

The United States leads with 632 companies, followed by India (295) and the United Kingdom (139). Every industrial control system security list by country and city is linked on this page.

Which city has the most industrial control system security?

London leads with 68 company records, followed by Dubai (40) and Sao Paulo (32).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 28,141 professional contacts with verified work emails tracked across these 3,051 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.